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Ensinger PEI

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High-Leaded Tin Bronze, UNS C93700, Copper Casting Alloy (SAE 64)
Categories: Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:

Casting methods recommended for this alloy: Centrifugal, Continuous, Permanent Mold, and Sand.

Applications: Bearings for high speed and heavy pressures, pumps, impellers, corrosion-resistant applications, pressure tight castings.

Classified under: High-leaded tin bronzes. ASTM B22; ASTM B584; formerly ASTM B22-C; ASTM B144-3A

Typical data for sand cast test bars. Alloy does not respond to heat treating. Casting shrinkage allowance is 2%
Key Words: High lead tin bronze, ASTM B22, ASTM B584, ASTM B22-C, ASTM B144-3A
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Physical PropertiesOriginal ValueComments
Density 8.95 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 60
Tensile Strength, Ultimate 240 MPa
 210 MPa
@Temperature 230 °C
 230 MPa
@Temperature 120 °C
 270 MPa
@Temperature 25.0 °C
 295 MPa
@Temperature -40.0 °C
Tensile Strength, Yield 125 MPa
@Strain 0.5 %
 95.0 MPa
@Strain 0.2 %,
Temperature 120 °C
 95.0 MPa
@Strain 0.2 %,
Temperature 230 °C
 105 MPa
@Strain 0.5 %,
Temperature 120 °C
 105 MPa
@Strain 0.5 %,
Temperature 230 °C
 115 MPa
@Strain 0.2 %,
Temperature 25.0 °C
 125 MPa
@Strain 0.5 %,
Temperature 25.0 °C
 135 MPa
@Strain 0.2 %,
Temperature -40.0 °C
 145 MPa
@Strain 0.5 %,
Temperature -40.0 °C
Elongation at Break 20 %in 50 mm
 16 %
@Temperature 230 °C
 22 %
@Temperature 120 °C
 28 %
@Temperature -40.0 °C
 30 %
@Temperature 25.0 °C
Reduction of Area 20 %
@Temperature 230 °C
 24 %
@Temperature 25.0 °C
 26 %
@Temperature -40.0 °C
 27 %
@Temperature 120 °C
Creep Strength 12.0 MPa
@Temperature 288 °C		for 0.00001%/h
 51.0 MPa
@Temperature 232 °C		for 0.00001%/h
 71.7 MPa
@Temperature 177 °C		for 0.00001%/h
Rupture Strength 120 MPa
@Temperature 230 °C,
Time 2.70e+6 sec
 135 MPa
@Temperature 230 °C,
Time 1.08e+6 sec
 150 MPa
@Temperature 230 °C,
Time 234000 sec
 210 MPa
@Temperature 175 °C,
Time 86400 sec
Tensile Modulus 11000 ksi
 45.0 GPa
@Temperature 230 °C
 68.0 GPa
@Temperature 120 °C
 82.0 GPa
@Temperature 25.0 °C
 93.0 GPa
@Temperature -40.0 °C
Compressive Strength 90.0 MPaat permanent set of 0.1%
 325 MPaat permanent set of 10%
 95.0 MPa
@Temperature 120 °C		0.1% set
 100 MPa
@Temperature 240 °C		0.1% set
 105 MPa
@Temperature 25.0 °C		0.1% set
 120 MPa
@Temperature 120 °C		1% set
 120 MPa
@Temperature 240 °C		1% set
 140 MPa
@Temperature -40.0 °C		0.1% set
 150 MPa
@Temperature 25.0 °C		1% set
 175 MPa
@Temperature -40.0 °C		1% set
 215 MPa
@Temperature 25.0 °C		10% set
 270 MPa
@Temperature 120 °C		10% set
 275 MPa
@Temperature 240 °C		10% set
 350 MPa
@Temperature -40.0 °C		10% set
Fatigue Strength 90.0 MPa
@# of Cycles 1.00e+8
Machinability 80 %UNS C36000 (free-cutting brass) = 100%
Izod Impact 7.00 J
Charpy Impact 15.0 JV-notch
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000170 ohm-cm
 0.0000171 ohm-cm
@Temperature 25.0 °C
 0.00001776 ohm-cm
@Temperature 65.0 °C
 0.000018125 ohm-cm
@Temperature 90.0 °C
 0.00001851 ohm-cm
@Temperature 120 °C
 0.00001891 ohm-cm
@Temperature 150 °C
 0.00001933 ohm-cm
@Temperature 175 °C
 0.00001977 ohm-cm
@Temperature 210 °C
 0.0000200 ohm-cm
@Temperature 235 °C
Magnetic Permeability 1.0
 
Thermal PropertiesOriginal ValueComments
CTE, linear 17.8 µm/m-°C
@Temperature 100 °C
 18.0 µm/m-°C
@Temperature 130 °C
 18.2 µm/m-°C
@Temperature 165 °C
 18.3 µm/m-°C
@Temperature 185 °C
 18.4 µm/m-°C
@Temperature 215 °C
 18.6 µm/m-°C
@Temperature 235 °C
 18.7 µm/m-°C
@Temperature 270 °C
Specific Heat Capacity 0.376 J/g-°C
Thermal Conductivity 46.9 W/m-K
@Temperature 20.0 °C
 47.0 W/m-K
@Temperature 20.0 °C
 48.0 W/m-K
@Temperature 40.0 °C
 50.0 W/m-K
@Temperature 70.0 °C
 51.0 W/m-K
@Temperature 95.0 °C
 52.0 W/m-K
@Temperature 125 °C
 54.0 W/m-K
@Temperature 160 °C
 56.0 W/m-K
@Temperature 175 °C
 59.0 W/m-K
@Temperature 205 °C
 62.0 W/m-K
@Temperature 230 °C
Melting Point 762 - 930 °C
Solidus 762 °C
Liquidus 930 °C
Shrinkage 1.1 %Patternmaker's Shrinkage (1/8 in./ft.)
 
Processing PropertiesOriginal ValueComments
Annealing Temperature 260 °CStress-Relieving Temperature
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al <= 0.0050 %
Antimony, Sb <= 0.50 %
Copper, Cu 78 - 82 %
Iron, Fe <= 0.15 %
Lead, Pb 8.0 - 11 %
Nickel, Ni <= 0.70 %
Phosphorus, P <= 0.050 %
Silicon, Si <= 0.0030 %
Sulfur, S <= 0.080 %
Tin, Sn 9.0 - 11 %
Zinc, Zn <= 0.70 %

References for this datasheet.

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MC93700b1 / 11949

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